👉 The term "ex-fluid" refers to a type of fluid that was previously associated with excretory or waste removal processes in biological systems, often used in the context of fluid dynamics and fluid mechanics. In a more technical sense, it can describe a fluid that has been temporarily or permanently altered in composition or properties due to interactions with other substances, such as solutes or particulates, during its transport through a system. This altered fluid may exhibit different physical characteristics, such as viscosity or density, compared to its original state. In engineering and environmental contexts, "ex-fluid" might also refer to fluids that have been treated or modified for specific applications, such as in water purification or industrial processes, where the fluid's properties are adjusted to meet certain requirements or standards.